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Finding the Fourth Proportional to 56,385,276.80, 84,388,958.40 and 56,385,276.80

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Solution

The fourth proportional to 56,385,276.80, 84,388,958.40 and 56,385,276.80 is: 84,388,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,385,276.80 : 84,388,958.40 = 56,385,276.80 : x
  2. Step 2: Convert to fraction form
    56,385,276.80/84,388,958.40 = 56,385,276.80/x
  3. Step 3: Cross multiply
    56,385,276.80x = 84,388,958.40 × 56,385,276.80
  4. Step 4: Simplify right side
    56,385,276.80x = 4,758,294,778,247,685
  5. Step 5: Solve for x
    x = 4,758,294,778,247,685/56,385,276.80
  6. Step 6: Final answer
    x = 84,388,958.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.